Question

what is the thermal conductivity of aluminum in kcal/m/h/oc

Answer 1

Thermal conductivityFrom Wikipedia, the free encyclopediaJump to navigationJump to searchFor thermal conductivity values, see List of thermal conductivities.

Thermal conductivity (often denoted k, λ, or κ) is the property of a material to conduct heat. It is evaluated primarily in terms of the Fourier's Law for heat conduction. In general, thermal conductivity is a tensor property, expressing the anisotropy of the property.

Heat transfer occurs at a lower rate in materials of low thermal conductivity than in materials of high thermal conductivity. Correspondingly, materials of high thermal conductivity are widely used in heat sink applications and materials of low thermal conductivity are used as thermal insulation. The thermal conductivity of a material may depend on temperature. The reciprocal of thermal conductivity is called thermal resistivity.

The general equation for thermal conductivity is {\displaystyle {\vec {q}}=-k{\vec {\nabla }}T}.

Contents  [hide] 1Units of thermal conductivity2Measurement3Experimental values4Definitions4.1Conductance4.2Resistance4.3Transmittance4.4Admittance5Influencing factors5.1Effect of temperature on thermal conductivity5.2Chemical phase5.3Thermal anisotropy5.4Electrical conductivity5.5Magnetic field5.6Gaseous Phases5.7Isotopic purity6Physical origins6.1Lattice waves6.2Electronic thermal conductivity7Equations8Simple kinetic picture9See also10References11Further reading